Just looked at the schedule for this year's ToT 10 Miler and the big race starts at 10PM; the park closes at 6:00PM. All the other races are at ESPN. The after party at HS for the race is over by 3:30 AM, so I would think a similar schedule will apply next year. But I agree with other posters, the real problem will be getting a resort room, especially if Disney again designates host hotels - but I didn't see any listed for the ToT 10 Miler. I'm running during the Princess Marathon weekend next February and all of the resorts are host hotels, due to the demand for this run event. Registration for next year's ToT race probably won't open until 5-6 months before the race date.
We were at EPCOT during F&W on the evening of the race. If it weren't for the additional EMTs and runners around, I wouldn't have known a race was scheduled.
Speaking of runDisney, I've heard rumor that next year's Everest Challenge has been cancelled. Is this true? I don't see it listed on the runDisney website and I would assume registration would open soon.